Formula 1 drivers are bracing themselves for the toughest mechanical challenge of the season in the Mexican Grand Prix, which is set to take a toll on engine and brake cooling.

Mexico's high altitude means the air is less dense and that makes it much harder for teams to keep the temperature of their cars under control.

Drivers have had to lift and coast at the end of straights to protect their brakes and engines from overheating in practice, and the situation will likely get worse in Sunday's race.

"It's a tough circuit for cooling, probably one of the most difficult of the year, because of the thin atmosphere and the huge amount of braking you've got to do without the benefit of drag," explained Williams technical chief Paddy Lowe.

"With the turbo engine, unlike a normally aspirated engine which is down on power, these engines are running normal power.

"So, you've got all the same heat, or in fact more, because the compressor is doing even more work.

"Then you get less cooling because there's less air mass through the radiators, but even more heat than normal, so it's a double whammy.

With cooling & braking being important factor.
Following other car would be pretty much tough as to stay with them continuously could cause overheating of brakes & engine vibrations at this circuit. So tough weekend for drivers & their cars.